683612 has 24 divisors (see below), whose sum is σ = 1276800. Its totient is φ = 319680.

The previous prime is 683603. The next prime is 683651. The reversal of 683612 is 216386.

It is a congruent number.

It is an unprimeable number.

683612 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4514 + ... + 4662.

It is an arithmetic number, because the mean of its divisors is an integer number (53200).

2⁶⁸³⁶¹² is an apocalyptic number.

683612 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

683612 is a deficient number, since it is larger than the sum of its proper divisors (593188).

683612 is a wasteful number, since it uses less digits than its factorization.

683612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 219 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 683612 is about 826.8083211966. The cubic root of 683612 is about 88.0920180719.

Adding to 683612 its reverse (216386), we get a palindrome (899998).

The spelling of 683612 in words is "six hundred eighty-three thousand, six hundred twelve".